Abstract
Analysis of liquid spray structures using two-photon fluorescence laser sheet imaging
Highlights
Water and ethanol are both common solvents in various spraying processes such as painting, cooling, particle synthesizing and fuel combustion
The energy of an absorbed photon in the fluorescence dye is insufficient to elevate electrons from their electronic ground state to an excited state. This means that the dye will not show fluorescence in case of 1-photon excitation. 2p-LIF has been widely applied in e.g. biological microscopy [9] or in flame species measurements [10,11,12]
The 2p-LIF approach was applied to a common DISI injector to observe differences in the spray structures depending on the liquid properties
Summary
Water and ethanol are both common solvents in various spraying processes such as painting, cooling, particle synthesizing and fuel combustion. Guénot et al [3] introduced the combination of X-ray and 2p-LIF measurements to get insight into the detailed spray structure Both techniques avoid the generation of multiple scattering and the intensity of the ambiguous off-axis signals is insignificant. The fluid properties like surface tension and viscosity determine the size, shape and local distribution of the resulting liquid structures, as well as the spray width and cone angle The latter are analyzed in this paper in terms of cyclic variability of the macroscopic spray shape, which determine the atomization quality, droplet dispersion as well as the subsequent mixing process
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
